v0.4.5

Fixed

• Require an exact modeled engine identity and recognized thrust mode; unresolved rating
  suffixes no longer silently reuse another engine's estimate.
• Reject missing/unknown bleed and anti-ice settings, boolean numerical inputs and
  temperatures outside the model's computational bounds instead of assuming defaults or crashing.
• Scope saved N1 readings by weight units, ignore invalid/stale/mismatched calibration
  records, and keep the uncalibrated briefing available when a new reading is needed.
• Retain thrust method, assumptions and source anchors in saved briefings.

Added

• Frozen profile/condition contracts and independently executed pinned FlyByWire source
  reference cases. These establish software behavior, not manufacturer accuracy or
  Infinite Flight aircraft support; simulator and per-profile reference gaps remain open.